覆盖整个UHF频段的吸波结构

吴昌英; 高阳; 马承乾; 冯富森林

doi:10.12263/DZXB.20220125

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覆盖整个UHF频段的吸波结构

学术论文 | 更新时间：2025-12-11

- 覆盖整个UHF频段的吸波结构
- An Absorbing Structure Covering the Whole UHF Band
- 电子学报 2024年52卷第2期页码：421-427
- 作者机构：
  
  西北工业大学电子信息学院，陕西西安 710072
- 作者简介：
  
  [ "吴昌英男，1977年4月出生于陕西省西安市.博士.现为西北工业大学电子信息学院副教授.主要研究方向为微波测量与天线技术研究. E-mail: aaawucy@ nwpu.edu.cn" ]
  [ "高阳男，1993年3月出生于陕西省商洛市.西北工业大学硕士.主要研究方向为微波测量与天线技术研究. E-mail: yanggao@mail.nwpu.edu.cn" ]
  [ "马承乾男，1997年6月出生于陕西省渭南市.西北工业大学硕士.主要研究方向为微波测量与天线技术研究. E-mail: mglookout@outlook.com" ]
  [ "冯富森林男，1995年7月出生于陕西省安康市.西北工业大学硕士.主要研究方向为微波测量与天线技术研究. E-mail: 309491009@qq.com" ]
- 基金信息：
- DOI：10.12263/DZXB.20220125
  中图分类号： TN95;
- 收稿：2022-01-29，
  
  修回：2023-09-01，
  
  纸质出版：2024-02-25
- 稿件说明：
移动端阅览
吴昌英,高阳,马承乾,等.覆盖整个UHF频段的吸波结构[J].电子学报,2024,52(02):421-427.

WU Chang-ying, GAO Yang, MA Cheng-qian, et al.An Absorbing Structure Covering the Whole UHF Band[J].Acta Electronica Sinica, 2024, 52(02): 421-427.
吴昌英,高阳,马承乾,等.覆盖整个UHF频段的吸波结构[J].电子学报,2024,52(02):421-427. DOI：10.12263/DZXB.20220125

WU Chang-ying, GAO Yang, MA Cheng-qian, et al.An Absorbing Structure Covering the Whole UHF Band[J].Acta Electronica Sinica, 2024, 52(02): 421-427. DOI：10.12263/DZXB.20220125

摘要

设计了一种覆盖整个特高频（Ultra-High Frequency，UHF）频段的超宽带吸波结构.利用了磁性材料的磁导率随频率减小而增大的特性，降低了吸波结构性能对频率的敏感性；结合等效电路方法，引入电损耗，进一步改善了吸波结构的低频性能.在整个UHF频段测量了羰基铁粉的介电常数和磁导率，采用遗传算法优化了等效电路参数，采用全波仿真软件优化了结构参数，在低频端对所加工的吸波结构的反射系数进行了测量.测量结果、仿真结果和等效电路结果吻合良好.所设计的吸波结构的相对带宽超过164%，厚度为最低工作频率波长的2.9%.

Abstract

An ultra-wideband absorbing structure coving the whole ultra-high frequency (UHF) band is provided in this paper. The permeabilities of magnetic materials increase with the decrease of frequency. Therefore

the absorber is less susceptible to frequency. The performance of the absorber at low frequencies is further improved by introducing resistive loss. The permittivity and permeability of carbonyl iron powder are measured by vector network analyzer

the equivalent circuit parameters are optimized by genetic algorithm

and the structure parameters are optimized by full-wave EM simulator

all in whole UHF band. The absorber is measured at low frequencies. The measured

simulated

and equivalent circuit results show a good agreement. The absorber presents an absorption rate over 90% within a fractional absorption bandwidth over 164%

and it has a thickness of 0.029

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=56624244&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=56624250&type=

1.52400005

2.28600001

at the lowest frequency.

关键词

Keywords

references

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